Coil binding machine



Nov L 1949 A. w. FERGUSON COIL BINDING MACHINE '7 Sheets-Sheet 1 Filed April 15, 1947 1. 5 M 7w I I 1 Q Q III! III I: i w v JIIIIWQ, MM mm p @Q E W @m N? $w I E omvo 3 3 N 3 000 mm 2 3m NW8 8 Hm. r @m @N wmww INVENTOR.

] ANDREW W FERGUSON ms ATTORNEY COIL BINDING MACHINE Filed April 15, 1947 '7 Sheets-Sheet 2 1 103 H 105 153 P 104 121 151' /-1 6 l 122 123 58 107 124 125 1Z0 155 155: 2 3 1 116 155 1 i 152 i K I m m I 7 I 118 l 112 L f? -1 "11 .1

' lb lVENTOR ANDREW WFERGUsON HIS ATTORNEY Nov. I, 1949 V A. w. FERGUSON 2,436,832

COIL BINDING MACHINE Filed April 15, 1947 7 Sheets-Sheet 3 I I I l I I I l I I I I l I I I I l I l I I 153 INVENTOR ANDREW W FERG usau HIS ATTORNEY Nov. 1, 1949 A. w. FERGUSON 2,436,832

COIL BINDING MACHINE Filed April 15, 1947 7 Sheets-Sheet 4 INVENTOR.

ANDREW W. FERGUSON BMW) Hi5 A TTQRNEY Nov. 1, 1949 A. w. FERGUSON con, BINDING MACHINE 7 Sheets-Sheet 5 Filed April 15, 1947 HNH INVENTOR NDREW W Final/801v! n IS ATTOR N EY Nov. 1, 1949 A. w. FERGUSON 2,486,832

COIL BINDING MACHINE Filed April 15, 1947 7 Sheets-Sheet 7 INVENTOR IKl-Z'Rausu:

TTQRNEY Patented Nov. 1,1949

COIL BINDING MACHINE Andrew W. Ferguson, Great Neck, N. Y., asslgnor to The Sperry Corporation,

Delaware a corporation of Application April 15, 947, Serial No. 741,635

This invention relates to coil binding machines and more particularly to a machine for binding distributed field coils for electric motors or the like as they are wound and delivered from a winding machine of the type shown in my co-pending application, Serial No. 716,262, filed December 14, 1946, now Patent No. 2,445,109, granted July 13, 1948, for Coil winding machines.

The above mentioned application discloses a winding machine in which coil sections are successively wound and are advanced in spaced relationship to a discharge point. The machine provides for winding a required number of coil sections which are followed by a winding of one or more turns which may be severed to form the connecting leads, after which the next group of coil sections is wound and advanced in the same manner.

in accordance with the present'invention the binding machine is adapted to apply a temporary binding to the various coil sections as they are advanced from the winding machine. Such binding, however, is omitted from the intermediate windings of one or more turns which separate the groups. of coil sections.

An object of the invention is to provide a machine oi the above type which automatically applies a temporary binding to the selected coil sections as they are wound and advanced from a winding machine so that the sections retain their term until they are applied to the armature or field as the case may be of an electric motor or the like.

Another object is to provide a mechanism of the above type'which may be readily adjusted in accordance with the number of coil sections which are to be bound in each group.

ll Claims. (Cl. 216-25) Another object is to provide a mechanism of tion, taken in connection with the accompanying drawings in which a specific embodiment thereof has been set forth for purposes of illustration.

In the drawings: Fig. 1 is a top plan view of a. binder for applying a temporary binding to a series of advancing coils, showing a portion of the paper roll support;

Fig. 2 is a partial section taken on the line 2-2 of Fig. 1;

Fig. 3 is a longitudinal vertical section taken along the line 3-3 of Fig. 1;

Fig. 4 is a partial section on an enlarged scale taken on the line 4-4 of Fig. 1 showing the cutting knife extended;

Fi 5 is a similar section showing the cuttin knife retracted;

Fig. 6 is an end elevation of the machine, partly in section, and with a part of the end plate removed, looking from the right in Fig. 1.

Fig. '7 is a partial rear elevation showing the knife operating mechanism;

Fig. 3 is a section taken on the line H of Fig. 7;

Fig. 9 is an end elevation of the machine looking from the left in Fig. 1; r

Fig. 10 is a detail view of the interrupter mechanism;

Fig. 11 is in part a top plan view and in part a horizontal section taken on the line ll-ii of Fig. 3 with the top plate omitted;

Fig. 12 is a detail view of the paper feed mechanism;

Fig. 13 is a horizontal section takenon the line I3--l3 of Fig. 3;

Fig. 14 is a perspective view of a group of coil sections as bound by the present machine;

Fig. 15 is a detail view of a severed binding strip, and

Fig. 16 is a perspective view of the spreader.

The purpose of the present machine will be understood from Fig. 14 which shows a plurality of coil sections 16 which have been successively wound by suitable means, for example such as the machine shown in my co-pending application above referred to, and are followed by a winding l'l comprising a pair of turns which are adapted to constitute the connecting leads and may be severed to separate the group of sections it from the-succeeding groups of sections. Each section I8 is shown as bound by strips I8 which are positioned about diametrically opposite legs of the coil sections. The strips I 8 comprise a flexible ribbon such as paper having a pressure sensitive adhesive thereon and so constructed that the ends of the strips are adhesively joined together by the application of pressure. The strips it hold the coil sections formed until they are applied to the held or armature of the device on which they are to be wound. After the coil sections are finally assembled the strips I! are removed.

The present machine is adapted to apply and 3 seal the strips I8 to the various coil sections as they successively advance from the winding machine.

Referring to Figs. 1, 3, 11 and 13, a plurality of coil sections I6 are shown as they are advanced in spaced relationship by upper and lower feed screws 28 and 2I which form a part of the discharge end of a coil winding machine which may a be of the type shown in my co-pending application above referred to. The sections I6 advance on opposite sides of a guide 22 (Figs. 3 and 13) which is provided with front surfaces 23 terminating in a nose 24 carrying a spring guide member 25 which is adapted to position the coil sections to advance along the sides of the guide 22. Rods 26 (Fig. l) are provided for supporting the coil sections after they are bound and discharged from the feed screws 28 and 2|.

A binding machine is positioned on each side of the guide 22 to apply the binding strips I8 to the opposite legs of the coil sections I8 as they are advanced. The machine positioned to apply the binding to the right side of the advancing coil section is shown and described herein in detail. It is to be understood that a similar but reversed machine is mounted on the opposite side of the guide 22 to apply the binding tothe left side of the advancing coil sections.

Referring to Fig. 1 a roll 38 of pressure sensitive tape from which the binding strips I8 are to be cut is shown as positioned on a supporting disc 3I. A spring brake member 32 attached to a top plate 33 bears against the periphery of the disc 3| to restrain the rotation thereof as required. The tape '34-from the roll 38 is shown as feeding around a slack-providing pulley 35 mounted on a movable arm 36 which is pivoted at 31 and is provided with a spring 38 bearing against a stationary plate 39 to hold the arm 36 normally in retracted position.

From the slack-providing pulley 35 the tape 34 passes between a pair of feed pulleys 48 and H (Figs. 1 and 2). The feed pulley 48 is provided with a segmental surface 42 which holds the tape 34 against the pulley M for feeding the tape during the portion of each revolution which corresponds to the extent of the segmental surface 42. During the remainder of each revolution the tape 34 is released and remains stationary.

From the feed pulleys 48 and M the tape 34 is fed through a. guide 45 to a movable cutting knife 46 (Figs. 1, 4, 5 and '7) which cooperates with a stationary knife 44 to sever the tape into the proper lengths of binding strip I8. The knife 46 is shown as comprising a blade which is slidably mounted in brackets 48 and is provided with a cutting edge 49. The blade 46 is reciprocated by means of a lever 58 which is pinned to the blade by a pin 5I and is attached to a shaft 52.

The tape 34 is fed from the guide 45 to a channel formed by a pair of guides 51 (Figs. 8 and 12) attached to a flange 55 (Figs. 3 and 8) secured to a plate 56 forming a part of the frame 58.

The tape is advanced in the guides 51 by means of a pair of fingers 68 and BI (Figs. 8, 11 and 12) which are mounted on a reciprocating bar 62 slidable in a channel formed by guides 63 (Fig. 8) attached to the plate '56. The fingers 88 and 6| engage the tape on opposite sides of the cutting knife 46 for feeding the tape 34 to the knife and for advancing the severed strip I8 therefrom. A pair of stationary guide strips 65 and 66 are mounted on a flange 61 attached to the plate 58 and are provided with inturned front ends 89 and 18, respectively, which are positioned to engage 4 the fingers 88 and 6 I, respectively, on their return strokes and lift them from the tape. When the fingers 68 and 6| have been retracted past the rear edges 12 and 13. respectively, of the strips 65 and 66, they are free to snap against the tape and to feed the tape on their feed strokes during which the upper ends of the fingers 68 and BI advance inside of the guide strips 65 and 66.

The fingers 68 and 6| may be provided with suit-' able pins 14 and 15, respectively, to engage the tape between the guide strips 51. In the position shown in Fig. 12 a severed strip I8 has been advanced into the path of the oncoming coil section.

A spreader slide 16 (Figs. 11, 13 and 16) is mounted to slide on the upper guide 63 and carries a. bracket 11 to which a horizontalplate 18 is attached. The plate 18 is shaped to extend between successive coil sections I6 to spread the same to receive the strip I8. The plate 18 also carries a vertical fin 19 which supports the projecting strip I 8. A guide plate 88 is also attached to the flange 55 to support the severed strip I8.

The slide 16 is actuated by a spring finger 8| which is mounted on the bar 62 and carries a flange 82 which engages the slide 16. The slide 16 is provided with a shoulder 83 (Figs. 11, 13 and 16) which engages a stop plate 84 to limit the outward movement of the slide and the bracket 11 engages the flange to limit the retraction of the slide. The spreader is thus advanced and retracted only at the beginning of the feed and return strokes of the bar 62. After the slide 16 engages its stop members, the spring member 82 slides thereover during the remainder of the stroke of the bar 62.

The bar 62 carries a head 85. having an arcuate slot 86 therein (Figs. 3, 11, 12 and 13) and terminates in a guide bar 64. A slide block 81 is adapted to slide in the slot 86 and is pivoted by a pin 88 to a disc I88 mounted on a drive shaft IN. The pin 88 also carries a crank 89 which is attached by a clamping screw 93 to a pin 98, concentric with the shaft IN. The pin 98 carries a gear 94 (Figs. 1, 2 and 3), meshing with a gear 95 (Fig. 2) on a shaft 96 to which the feed roller 48 is attached. The feed roller 4| is journaled for free rotation on the saft 98.

The shaft IN is supported in a plate I82 (Fig. 3) forming a part of the frame 88. The shaft I8I carries a toothed member I83 (Figs. 3 and 10) which is normally engaged by pawl I84 pivotally mounted on a pin I85 attached to a disc I86.

. The disc I86 is mounted on a shaft I81 which is supported in bearings I88 in a boss I89 forming a part of the frame 58. The lower end of the shaft I81 carries a bevel gear II8 meshing with a bevel gear III mounted on a horizontal shaft II 2 to which power is supplied by suitable means not shown.

The shaft II2 carries a spur gear II4 (Figs. 3 and 6) meshing with a gear II 5 mounted on a pin I I6 carried in an arm II1 which is journalled by a bushing II8 to swing about the shaft I I2. The gear I I5 carries a pinion I28 meshing with a gear I2I (Figs. 3, 6 and 10) attached to a sleeve I22 journaled on bearings I23 about a horizontal pin I24. The sleeve I22 carries an arm I25 which is adapted to engage the pawl I84 for holding the same out of engagement with the member I83. The arm I" is provided with an extension I38 (Fig. 6) carrying a locking screw I3I extending through an arcuate slot I32 in the end plate I33 of the machine, for permitting the extension I38 and arm II1 to be adjusted in accordance with the size of the gears I20 and I2I. These gears are changeable and are selected with the desired ratio for causing the arm I25 to engage the pawl I04 for releasing the member I03 after a predetermined number of actuations of the bar 52. The purpose of the coupling member I03 and the release mechanism above described is to prevent the binding strip I from being applied to the connecting loop I! between the coil sections I5.

The crank 00 is provided with a cam surface I35 (Figs. 6, 11 and 13) whichengages a finger I35 mounted on the shaft 31 which actuates the take-up arm 35.

The knife actuating shaft 52 is journaled in brackets 45 and I (Figs. 7, 8, 11 and 13). The shaft 52 carries an arm I42 having a head I43 which bears against the cam surface I44 of the disc I00 and is held against the surface I44 by a spring I45.

The drive shaft I I2 also carries a spur gear I50 (Figs. 3 and 9) meshing with a gear II carried on a shaft I52 which is journaled in brackets I53 attached to the frame 50 and carries a worm I54 meshing with a. worm gear I55 carried by a vertical shaft I55 journaled in bore I51 on the frame 50. The shaft I55 at its upper end carries a spur gear I58 meshing with a gear I53 on a shaft I50 carrying a rotating presser wheel I5I (Figs. 1, 3, 9, 11 and 13) having fingers I52 to press the strip I0 for sealing against a rotatable anvil I53 (Fig. 13) which is journaled on a pin I54 attached to the guide 22. The wheel I5I has recesses I55 lined by a soft material to receive the coil sections I5 as they advance past the anvil I53. A guide spring I41 is attached to a flange I55 carried by the lower guide strip 517 to guide the coil sections I5 to the wheel I5I.

In the operation of this device the drive shaft H2 is driven in synchronism with the feed rollers 20 and 21! which feed the coil section I5 from the winding machine. The rate of drive is such that the bar 52 is reciprocated by the crank 09 once for each coil section I5 that advances past the guide 22. When the bar 52 has reached a predetermined point the knife 45 is actuated by the cam surface I44 of the disc I00 to sever the strip I5. When the bar 52 advances the fingers 50 and 5i advance both the severed strip I0 and a new length of the unsevered tape 34 along the guide 51 and cause the severed strip I5 to project between two adjacent coil sections I5. At the same time the spreader I0 advances into the space between two adjacent coil sections to space the same to receive the strip I3. The severed strip is then carried along by the advancing coil section I5 as indicated in Figs. 11 and 13 to form a loop with the two ends trailing. When this loop reaches the pressure wheel I5I, the fingers I52 thereof engage the two trailing ends of the strip and press the same against the anvil I53 thereby effecting a pressure seal.

By changing the gearing and'timing the strips I5 may be increased in length and so fed that a projecting end of each strip will contact and adhere to the binding strip on the following coil, thus holding the coils in a group.

At each rotation the arm I25 engages the pawl I04 to disengage the same from the tooth I03 and interrupt the drive of the shaft IM and thereby stop the operation of the arm 52, the knife 45 and the'- feed of the tape. The gears I I5 and I20 are so selected that this occurs when a connecting loop I1 is in the sealing position 6 and prevents a binding strip from being attached to this 1001).

In the. embodiment shown in Fig. 14 the connecting loop I! appears after each group of four sections I5. Hence the gear ratio is so selected that the arm I makes one revolution for, each five revolutions of the shaft I01 and disconnects the pawl I04 during each fifth revolution of the shaft I01. However, various other gear ratios may be readily obtained by changing the gears H5 and I20 and adjusting the position of the arm I accordingly.

The arm tends to maintain a uniform rotation of the roll 30 and disc 3| and feeds out the slack in the tape 34 during the intervals between feed strokes of the fingers and 5| and the feed roller 40.

It is to be understood that a similar mechanism applies the binding strips to the lefthand portion of the coil section I5 so that the coil sections are finally discharged onto the supporting rods 25 in bound condition as shown in Fig. 14.

Although a specific embodiment of the invention has been shown, it is to be understood that various changes and modifications may be made therein as will be readily apparent to a person skilled in the art, and that the invention is only to be restricted in accordance with the scope of the following claims.

What is claimed is:

1. A machine for applying a binding tape to one side of a. wound annular coil or the like, comprising a support carrying a roll of binding tape having pressure sealing characteristics, feed mechanism connected to advance such tape from said roll, a cutting knife, actuating means for said knife timed to sever successive lengths of said tape for binding, means for advancing said annular coil axially, feed means advancing the severed length of tape into the path of the advancing coil, guide means guiding said coil to pick up said severed length and to carry the same along as a loop with trailing ends, and presser means to apply pressure to said trailing ends for sealing said loop..

2. A machine for applying a binding tape to one side of a wound annular coil or the like, comprising a support carrying a roll of binding tape having pressure sealing characteristics, feed mechanism connected to advance said tape intermittently from said roll, a cutting knife, actuating means for said knife synchronized with said feed mechanism to sever successive lengths of said tape for binding, means for advancing said annular coil axially, reciprocating feed means advancing said severed length into the path of the advancing coil, guide means guiding said coil to pick up said severed length and to carry the same along as a loop with trailing ends, and presser means synchronized with the advance in said coil to apply pressure to said trailing ends for sealing said loop.

3. A machine for applying a binding tape to one side of a wound annular coil or the like, comprising a support carrying a roll of binding tape having pressure sealing characteristics, feed mechanism connected to advance said tape intermittently from said roll, a cutting knife, actuating means for said knife synchronized with said feed mechanism to sever successive lengths of said tape for binding, means for advancing said annular coil axially, reciprocating feed fingers advancing said severed length of tape into the path of the advancing coil, guide means to 7 guide said coil to pick up said severed length tape having pressure sealing characteristics, feed means connected to advance said tape from said roll, a cutting knife, actuating means for said knife timed to sever successive lengths of said tape for binding, means for advancing said annular coil axially, feed means advancing said severed length of tape into the path of the advancing coil, guide means guiding said coil to pick up said severed length of tape to carry the same along as a loop with trailing ends, presser means to apply pressure to said trailing ends for sealing said loop, driving mechanism for said feed means and said knife actuating means, and timed means to interrupt said driving mechanism after a predetermined number of successive sealing operations.

5. A machine for applying a binding tape to one side of a wound annular coil or the like, comprising a support carrying a roll of binding tape having pressure sealing characteristics, feed means connected to advance said tape from said roll, a cutting knife, actuating means for said knife timed to sever successive lengths of said tape for binding, means for advancing said annular coil axially, feed means advancing said severed length of tape into the path of the advancing coil, guide means guiding said coil to pick up said severed length of tape to carry the same along as a loop with trailing ends, presser means to apply pressure to said trailing ends for sealing said loop, driving means for said feed means and said knife actuating means including a releasable clutch, and timed means driven by said drive means to release said clutch periodically after each predetermined number of successive sealing operations.

6. A machine for applying a binding tape to one side of a wound annular coil or the like, comprising a support carrying a roll of binding tape having pressure sealing characteristics, feed means connected to advance said tape from said roll, a cutting knife, actuating means for said knife timed to sever successive lengths of said tape for binding, means for advancing said annular coil axially, feed means advancing said severed length of tape into the path of the advancing coil, guide means guiding said coil to pick up said severed length of tape to carry the same along as a loop with trailing ends, presser means to apply pressure to said trailing ends for sealing said loop, driving means for said feed means and said knife actuating means including a releasable pawl, a rotating member adapted to engage said pawl at a selected point during each revolution for releasing said driving means, and means driving said rotating member at a selected ratio to the actuation of said feed means for releasing said pawl after selected numbers of actuations of said feed means.

'7. In a machine for cutting and feeding strip material, a guide for said strip material, a pair of spaced feed fingers engaging the material in said guide, means causing said fingers to reciprocate, a spring guide positioned to engage said fingers during the return stroke thereof and to hold said fingers out of contact with said material whereby said fingers feed said material along said guide intermittently, a cutting knife disposed between said flngersand means synchronized with the movement of said fingers for actuating said knife during the return stroke of said fingers.

8. A machine for applying binding tape to a succession of advancing wound annular coils or the like, comprising a support carrying a roll of binding tape having pressure sealing characteristics, feed means connected to feed said tape intermittently from said roll, a cutting knife, actuating means for said knife synchronized with said feed means to sever successive lengths of said tape for binding, conveyor means advancing a succession of said annular coils in parallel spaced relationship, reciprocating feed fingers synchronized with the movement of said conveyor means to advance said severed lengths into the path of each advancing coil, spreader means synchronized with said feed fingers to space successive coils to receive said length of binding tape therebetween, guide means guiding said coils to pick up said severed lengths and to carry the same along in a loop with trailing ends, and presser means engaging said trailing ends to apply pressure thereto for sealing said loops.

9. A machine for applying binding tape to a progression of wound annular coils, comprising a pair of spaced feed rollers having means to advance a succession ofcoils in spaced parallel relationship, a strip of pressure-sensitive sealing tape, feed means to intermittently advance said tape, a cutting knife synchronizing said feed means to sever said tape into sealing lengths, means advancing said severed lengths into the space between successive coil sections, guide means cooperating with said coil sections to cause the same to pick up said tape in a loop and advance same with trailing ends, presser means synchronized with the advance in said coils and arranged to enter the space between successive coils to applypressure to said trailing ends for efiecting a seal, and means interrupting the operation of said feed means after each predetermined number of successive operations thereof.

10. A machine for applying a binding tape to one side of wound annular coils or the like, comprising a rotatable disc carrying a roll of binding tape having pressure sealing characteristics, a tape guide, rotating feed rollers connected to advance said tape from said roll to said guide, a cutting knife positioned to sever successive lengths of said tape in said guide for binding, conveyor means advancing said annular coils linearly, reciprocating feed fingers advancing the severed lengths of tape along said guide into the path of the advancing coils, guide means guiding said coils to pick up said severed lengths of tape and to carry the same along in a loop with trailing ends, and presser means synchronized with the advance of said coil to apply pressure to said trailing ends for sealing said loops.

11. In a machine for applying a binding tape to one side of wound annular coils or the like, comprising a support carrying a roll of binding tape having pressure sealing characteristics, feed mechanism connected to advance said tape intermittently from said roll, a cutting knife, actuating means for said knife synchronized with said feed mechanism to sever successive lengths of said tape for binding, conveyor means advancing said annular coil lineally, a tape guide, reciprocating feed means advancing said severed lengths advancing coils, a movable tape support, means 9 10 reciprocating said support with said feed means to support the advanced severed length of tape, REFERENCES CITED guide means guiding said coil to pick up said sev- The following references are of record in the ered lengths and to carry the same along in a, file of this patent: 100p lth trellmg ends, and presser nleans syn- 5 UNITED STATES PATENTS chromzed wlth the advance 1n sald 0011s to apply pressure to said hailing ends for sealing said Number Name Date loops. 8 1,113 sielaff Sept. 18, 1906 1,400,827 Leuman Dec. 20, 1921 ANDREW W. FERGUSON. 10, 2, 1, 64 Meitner Nov. 3, 1942 2,359,141) Meitner Sept. 26, 194.4 

